EP2379765B8 - Method for the manufacture of an aluminium alloy plate product having low levels of residual stress - Google Patents

Method for the manufacture of an aluminium alloy plate product having low levels of residual stress

Info

Publication number
EP2379765B8
EP2379765B8 EP10700994A EP10700994A EP2379765B8 EP 2379765 B8 EP2379765 B8 EP 2379765B8 EP 10700994 A EP10700994 A EP 10700994A EP 10700994 A EP10700994 A EP 10700994A EP 2379765 B8 EP2379765 B8 EP 2379765B8
Authority
EP
European Patent Office
Prior art keywords
plate
aluminium alloy
during step
less
cold rolling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10700994A
Other languages
German (de)
French (fr)
Other versions
EP2379765B1 (en
EP2379765A1 (en
EP2379765B2 (en
Inventor
Ingo Günther KRÖPFL
Alfred Johann Peter Haszler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novelis Koblenz GmbH
Original Assignee
Aleris Rolled Products Germany GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40601715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2379765(B8) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aleris Rolled Products Germany GmbH filed Critical Aleris Rolled Products Germany GmbH
Priority to EP10700994.6A priority Critical patent/EP2379765B2/en
Publication of EP2379765A1 publication Critical patent/EP2379765A1/en
Publication of EP2379765B1 publication Critical patent/EP2379765B1/en
Application granted granted Critical
Publication of EP2379765B8 publication Critical patent/EP2379765B8/en
Publication of EP2379765B2 publication Critical patent/EP2379765B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Forging (AREA)
  • Heat Treatment Of Steel (AREA)

Claims

1. A method of the manufacture of an aluminium alloy plate having reduced level of residual stress, said method comprising a) providing a solution heat-treated and quenched aluminium alloy plate having a thickness of at least 80 mm, b) stress-relieving said plate by cold rolling the plate to achieve a reduction in the thickness direction of the plate product in a range of 0.3% to 8%, and preferably of 0.5% to 6%.
2. A method according to claim 1 , wherein said plate is made of an aluminium alloy of the 2xxx, 6xxx, or 7xxx-series.
3. A method according to claim 1 or 2, wherein said plate has a thickness of less than 800 mm, and preferably of less than 600 mm.
4. A method according to any one of claims 1 to 3, wherein said plate has a thickness of at least 125 mm, and preferably of at least 175 mm.
5. A method according to any one of claims 1 to 4, wherein said plate has been cold rolled at a temperature of less than 900C, and preferably at a temperature of less than 600C.
6. A method according to any one of claims 1 to 5, wherein during step b) the reduction in the thickness direction of the plate product in a range of 0.5% to 3%.
7. A method according to any one of claims 1 to 6, wherein the cold rolling during step b) is carried using a rolling schedule consisting of a single rolling pass.
8. A method according to any one of claims 1 to 7, wherein the cold rolling during step b) is carried out at a strain rate of less than 0.10 sec"1, and preferably of less than 0.05 sec"1.
9. A method according to any one of claims 1 to 8, wherein the cold rolling during step b) is carried out at a strain rate of at least 0.006 sec"1.
10. A method according to any one of claims 1 to 9, wherein the cold rolling during step b) is carried out after solution heat treatment and quenching and prior to artificial ageing.
1 1. A method according to any one of claims 1 to 9, wherein the cold rolling during step b) is carried out after solution heat treatment, quenching and artificial ageing and cooling.
12. A method according to any one of claims 1 to 11 , wherein the plate is made from an 7xxx-series aluminium alloy, and preferably selected from the group of
AA7010, AA7136, AA7040, AA7140, AA7049, AA7050, AA7075, AA7081 , AA7181 , and AA7085.
13. A method according to any one of claims 1 to 11 , wherein the plate is made from an aluminium alloy 6xxx-series alloy, and preferably selected from the group of
AA6061 , AA6082, and AA6013.
14. A method according to any one of claims 1 to 11 , wherein the plate is made from an aluminium alloy 2xxx-series alloy, and preferably selected from the group of AA2014, AA2017, AA2024, AA2124, and AA2219.
15. Structural member for airframe structures made from aluminium alloy plates products obtained by the method according to any one of claims 1 to 14.
EP10700994.6A 2009-01-16 2010-01-15 Method for the manufacture of an aluminium alloy plate product having low levels of residual stress Active EP2379765B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10700994.6A EP2379765B2 (en) 2009-01-16 2010-01-15 Method for the manufacture of an aluminium alloy plate product having low levels of residual stress

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US14525809P 2009-01-16 2009-01-16
EP09150734 2009-01-16
PCT/EP2010/050479 WO2010081889A1 (en) 2009-01-16 2010-01-15 Method for the manufacture of an aluminium alloy plate product having low levels of residual stress
EP10700994.6A EP2379765B2 (en) 2009-01-16 2010-01-15 Method for the manufacture of an aluminium alloy plate product having low levels of residual stress

Publications (4)

Publication Number Publication Date
EP2379765A1 EP2379765A1 (en) 2011-10-26
EP2379765B1 EP2379765B1 (en) 2012-10-31
EP2379765B8 true EP2379765B8 (en) 2012-12-12
EP2379765B2 EP2379765B2 (en) 2016-10-12

Family

ID=40601715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10700994.6A Active EP2379765B2 (en) 2009-01-16 2010-01-15 Method for the manufacture of an aluminium alloy plate product having low levels of residual stress

Country Status (4)

Country Link
EP (1) EP2379765B2 (en)
CN (1) CN102282284A (en)
RU (1) RU2524291C2 (en)
WO (1) WO2010081889A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102965603A (en) * 2012-10-31 2013-03-13 邓运来 Heat treatment method for reducing quenching residual stress of wrought aluminum alloy and improving performance of the aluminum alloy
CN103045974B (en) * 2013-01-09 2015-03-04 湖南大学 Hot working method for improving strength of wrought aluminium alloy and keeping plasticity of wrought aluminium alloy
CN104624647B (en) * 2014-12-31 2017-01-11 中铝西南铝冷连轧板带有限公司 Production method for cast rolling 1100 alloy aluminum foil for mobile-phone battery shell
CN111534730B (en) * 2020-05-18 2021-05-28 西南铝业（集团）有限责任公司 Preparation method of 2219T8511 aluminum alloy extruded section
CN115228935A (en) * 2022-07-07 2022-10-25 中南大学 Cold rolling process method for high-strength aluminum alloy ribbed thin-wall plate

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6159315A (en) 1994-12-16 2000-12-12 Corus Aluminium Walzprodukte Gmbh Stress relieving of an age hardenable aluminum alloy product
US6027582A (en) * 1996-01-25 2000-02-22 Pechiney Rhenalu Thick alZnMgCu alloy products with improved properties
US6077363A (en) 1996-06-17 2000-06-20 Pechiney Rhenalu Al-Cu-Mg sheet metals with low levels of residual stress
US6406567B1 (en) 1996-12-16 2002-06-18 Corus Aluminium Walzprodukte Gmbh Stress relieving of an age hardenable aluminium alloy product
RU2163938C1 (en) * 1999-08-09 2001-03-10 Государственное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" Corrosion-resistant aluminum-base alloy, method of production of semifinished products and article for this alloy
FR2802946B1 (en) 1999-12-28 2002-02-15 Pechiney Rhenalu AL-CU-MG ALLOY AIRCRAFT STRUCTURAL ELEMENT
IL156386A0 (en) * 2000-12-21 2004-01-04 Alcoa Inc Aluminum alloy products and artificial aging method
US20020150498A1 (en) * 2001-01-31 2002-10-17 Chakrabarti Dhruba J. Aluminum alloy having superior strength-toughness combinations in thick gauges
US20050006010A1 (en) * 2002-06-24 2005-01-13 Rinze Benedictus Method for producing a high strength Al-Zn-Mg-Cu alloy
JP4783019B2 (en) 2002-12-06 2011-09-28 コンステリウム フランス Edge-on stress relaxation of aluminum thick plate
WO2004056501A2 (en) * 2002-12-17 2004-07-08 Pechiney Rhenalu Method for making structural elements by machining thick plates
EP1544315B1 (en) * 2003-12-16 2012-08-22 Constellium France Wrought product in the form of a rolled plate and structural part for aircraft in Al-Zn-Cu-Mg alloy
US20060070686A1 (en) * 2004-10-05 2006-04-06 Corus Aluminium Walzprodukte Gmbh High hardness moulding plate and method for producing said plate
DE102005045340B4 (en) * 2004-10-05 2010-08-26 Aleris Aluminum Koblenz Gmbh Process for heat treating an aluminum alloy element
FR2879217B1 (en) * 2004-12-13 2007-01-19 Pechiney Rhenalu Sa STRONG ALLOY SHEETS AI-ZN-CU-MG WITH LOW INTERNAL CONSTRAINTS
US8088234B2 (en) 2006-07-07 2012-01-03 Aleris Aluminum Koblenz Gmbh AA2000-series aluminum alloy products and a method of manufacturing thereof
FR2907796B1 (en) * 2006-07-07 2011-06-10 Aleris Aluminum Koblenz Gmbh ALUMINUM ALLOY PRODUCTS OF THE AA7000 SERIES AND METHOD FOR MANUFACTURING THE SAME
DE602008002822D1 (en) * 2007-03-14 2010-11-11 Aleris Aluminum Koblenz Gmbh AL-CU ALLOY PRODUCT SUITABLE FOR AIR AND SPACE APPLICATION

Also Published As

Publication number Publication date
WO2010081889A1 (en) 2010-07-22
CN102282284A (en) 2011-12-14
EP2379765B1 (en) 2012-10-31
RU2524291C2 (en) 2014-07-27
EP2379765A1 (en) 2011-10-26
EP2379765B2 (en) 2016-10-12
RU2011129115A (en) 2013-02-27

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